Kupo KCP-356-6in Steel Spring A Clamp

$10.00 /day

Premium industrial-grade 6-inch ( $150\text{mm}$ ) steel spring A-clamp, engineered by industry-standard Kupo, now available for rental in Hong Kong. Features a larger frame footprint with a high-tension steel coil to lock thick canvas backdrops, heavy polystyrene boards, or scaffolding tubes firmly with zero marks. (Note: This rental package covers spring clamps only; stands and backdrops are available separately.)

A 10% damage waiver fee will be applied to your order in the rental basket unless proof of own insurance can be supplied.

The Kupo KCP-356 6in Steel Spring A-Clamp (1 Pcs)—universally known on commercial film sets and photography stages as a Large 6″ Spring Clamp or Heavy A-Clamp—is an essential, high-strength rigging utility designed for professional gaffers, studio photographers, and production crews, making it a heavily utilized asset for equipment hire in Hong Kong. Engineered specifically to deliver massive mechanical clamping pressure where standard 4-inch clips fail to wrap around thick profiles, this oversized nickel-plated steel clamp pair features an industrial-grade internal coil spring built for demanding rigging applications.

When executing an equipment hire for heavy studio setups, multi-layered background arrays, or complex commercial sets in Hong Kong, maintaining structural safety under maximum load is critical. The KCP-356 sets itself apart with its extended mechanical jaw clearance, finished with thick, non-slip protective PVC rubber coated tips on both the jaws and handles. These protective jackets allow crews to tightly secure heavy seamless paper rolls, thick polystyrene foam cores, or oversized fabric diffusers onto thick support crossbars without experiencing surface tearing, sliding, or metallic scratch marks.

Applicable Scenarios:

Securing Heavy Canvas & Muslin Backdrops: Clamps thick canvas backdrops or heavy fabric drapes cleanly onto background crossbars inside production spaces in Kwun Tong or Chai Wan, keeping materials perfectly taut.
Locking Thick Polyboards and Sound Dampeners: Clips large 2-inch thick polystyrene bounce boards or acoustic foam sheets securely onto vertical rolling combo stands or auto-poles.
Rigging Large Diffusion Frames on Location: Secures heavy-duty overhead diffusion sheets or wind-breakers onto scaffolding grids or heavy steel frames during location shoots in Central.

Oversized Heavy-Duty Mechanical Footprint: Generous 6-inch ( $150\text{mm}$ ) total frame length provides an expanded maximum jaw opening width of approximately 75mm, ideal for gripping thick poles and tables.
Industrial-Grade Internal Coil Spring: High-strength steel spring delivers intense, uniform torque pressure that naturally resists material shifting or sliding under vertical load paths.
Non-Slip Protective Rubber Coated Tips: Jaws and handle tips are encased in heavy-duty black PVC rubber jackets to protect delicate surfaces, backdrops, and hands from mechanical scraping.
Rugged Nickel-Plated Steel Construction: High-tensile cold-rolled steel composition handles extreme mechanical stress, completely resisting rust, corrosion, and harsh on-set impacts.
High-Leverage Extended Handles: Elongated handle profiles allow assistant crews to squeeze and apply intense clamping pressure safely with minimal physical hand fatigue.

Kupo KCP-356 6″ Steel Spring A-Clamp x 1
(Note: This rental listing covers the standalone spring clamps only. C-Stands, background crossbars, heavy canvas backdrops, and rolling combo stands are available for add-on rent separately at our Hong Kong studio.)

Q: Are the vertical light stands, rolling combo stands, or background crossbars included inside this rental package?
A: No, they are not. This specific rental listing covers two standalone Kupo KCP-356 6-inch steel spring clamps only. It is intended for production teams who already have their own support gear or wish to build a custom kit layout. If you require a complete support system, please remember to add matching C-Stands or backdrop crossbars to your Hong Kong gear allocation.
Q: What is the main structural difference between this KCP-356 clamp and the smaller KCP-354 clamp?
A: The KCP-354 is a standard 4-inch clamp with a maximum jaw opening of about 50mm, ideal for paper backdrops and gel filters. This Kupo KCP-356 is an oversized 6-inch clamp featuring a much stronger internal spring coil and a wider jaw opening of up to 75mm. It is designed specifically to clamp onto thick profiles like heavy wood boards, thick canvas folds, or industrial scaffolding tubes where smaller clamps cannot fit.
Q: Can these steel spring clamps withstand the heat of high-power continuous lighting fixtures?
A: The clamp skeleton is made of rugged nickel-plated steel which handles high thermal limits perfectly. However, the protective black tips are made of PVC rubber. When clipping large flags or diffusers near high-power continuous lights, ensure the rubber tips are positioned away from direct contact with the hottest parts of the metal housing to prevent the protective jackets from melting.
Q: How is the rental fee calculated?
A: The rental fee is calculated on a 24-hour basis per rental period at Dream Scenes Studio Hong Kong.
Q: Is a deposit required?
A: Yes, a corresponding deposit is required for all equipment rentals in HK.
Q: What payment methods are accepted for the deposit?
A: We accept credit card authorization for the deposit, which is fast and convenient for local and international crews.